7217-01-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7217-01-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,1 and 7 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 7217-01:
(6*7)+(5*2)+(4*1)+(3*7)+(2*0)+(1*1)=78
78 % 10 = 8
So 7217-01-8 is a valid CAS Registry Number.